#sdpsgssolutions
#Friendlist - 0%
#Starter Problems 3

# Open the input and output files.
inputFile = open("listin.txt", "r")
outputFile = open("listout.txt", "w")

# Read how many numbers there will be
myInput = inputFile.readline()
n = int(myInput)

# Reads the integers
listPosition = 1
friendArray = []
positionList = []

while listPosition <= n:
	myInput = inputFile.readline().split()
	a = int(myInput[0])
	b = int(myInput[1])
	friendArray.append(a)
	friendArray.append(b)
	listPosition = listPosition + 1
	
outputFile.write(str(friendArray)+'\n')
	
hits = []
for item in friendArray:
    tally = friendArray.count(item)
    #Makes an entry that is the number of hits paired with the relevant number
    values = (tally, item)
    # Only add one entry for each number in the set
    if values not in hits:
        hits.append(values)
hits.sort(reverse=True)
outputFile.write(str(hits)+'\n')
if hits[0][0] > hits[1][0]:
    outputFile.write(str(hits[0][1]))
elif hits[0][0] == hits[1][0] and hits[1][0] > hits[2][0]:
	outputFile.write(str(hits[0][1])+' '+str(hits[1][1]))
else:
    outputFile.write("There is not a mode")
	
# Finally, close the input/output files.
inputFile.close()
outputFile.close()